Door chime



3 June 24, 1969 P. FOX ET AL 3,451,373

I DOOR CHIME v Filed July 6, 1967 Sheet of e INVEN'TORS PAU L FOX AND HORACE N. BROYL ES @w W ATTGRNEY June 24, 1969 P. FOX ET AL 3,451,373

DOOR CHIME Filed July 6, 1967 2 I \NVENTORS PAUL. FOX AND HORACE N. BROY LE5 BY Q91 w. /(M ATTORNY June 24, 1969 P. FOX ET AL 3,451,373

DOOR CHIME Filed July 6, 1967 Sheet 3 of 6 Tinli iliiil l lW21 Humi HEM! mvsmons PAUL. FOX AN D HORACE N- BRQ Y LES BY Q N K A ORNE P. FOX ET AL June 24, 1969 DOOR CHIME Sheet Filed July 6, 1967 mm om mm mm iNVENTORS PAU L FOX AN D HO ACE N. BROYLES BY W W ATTORNEY June 24, 1969 P. FOX ET AL DOOR CHIME Sheet Filed July 6, 1967 FlG. ll

INVENTORS PAUL Fox AND HORACE N. BR YLIES BY Q7; 7N ATTORNEY P. FOX ET AL June 24, 1969 DOOR CHIME Sheet Filed July 6; 1967 INVENTORS PAUL FOX AND HORACE N. BROYLES BY Q1 N w ATTORNEY United States Patent 3,451,373 DOOR CHIME Paul Fox, 1016 Country Park Drive, and Horace N. Broyles, 1106 Christie Lane, both of Prescott, Ariz.

Filed July 6, 1967, Ser. No. 651,561 Int. Cl. Gk 1/10, 1/32; G08b 21/00 US. Cl. 116-169 10 Claims ABSTRACT OF THE DISCLOSURE Background of the invention Heretofore numerous expedients have been developed for door signaling purposes covering the range from the old hand knockers through the push-button buzzers to the more melodious chimes of the present period. However, fundamentally such devices laave been designed to attract an individual to open the particular door. With doors that must for the most part remain unlocked, such as in small shops, ofiices, and even in homes, there is the problem of alerting an individual at some re mote point on the premises as to the fact that the particular door is being operated, but, obviously, without requiring the individual to effect door opening. Current devices intended to accomplish this purpose have inherently contained certain marked deficiencies, one being that the preponderant major portion of these expedients are electrically operated and thus require costly installation with attendant wiring as well as relatively frequent servicing. Other types of devices have consistently required the installation of units upon door frames or the wall portions adjacent thereto with recognized marring of the affected area. Thus, the present invention eliminates the need for expensive installation, frequent servicing, and mounting requiring damage to the support surface.

Summary of the invention 'It is an object of the present invention to provide a door chime which operates entirely by mechanical means and therefore obviates the need for costly wiring.

It is another object of the present invention to provide a door chime which is adapted for mounted disposition upon the particular door for movement therewith and with such movement providing the energy for operation of the device.

It is a further object of the present invention to provide a door chime of the character stated which comprises a marked simplicity of parts, all of which are quite durable and reliable in operation so as to assure of etficient functioning of the door chime over extended periods of time without necessitating inspection or servicrng.

It is another object of the present invention to provide a door chime of the character stated which may be easily installed by the average homeowner so that the expense of installation is avoided.

It is a still further object of the present invention to provide a door chime which is adapted to operate in 3,451,373 Patented June 24, 1969 ice Brief description of the drawings FIGURE 1 is a transverse sectional view of a door chime constructed in accordance with and embodying the present invention illustrating same as mounted upon a door.

FIGURE 2 is a vertical transverse sectional view taken on the line 2-2 of FIGURE 1.

FIGURES 3a and 3b are vertical views taken on the line 3-3 of FIGURE 2 illustrating the clapper in its inoperative and operative positions.

FIGURE 4 is a horizontal view taken on the line 44 of FIGURE 1 illustrating the door chime with the door swung in one direction.

FIGURE 5 is a horizontal view taken substantially on the line 44 of FIGURE 1 but showing the door chime as the door is swung in the opposite direction to that shown in FIGURE 4.

FIGURE 6 is a vertical transverse sectional view of another form of door chime constructed in accordance with and embodying the present invention, illustrating the same "as mounted upon a door adapted to be swung in a single direction.

FIGURE 7 is a vertical transverse sectional view taken on the line 7-7 of FIGURE 6.

FIGURE 8 is a horizontal view taken on the line 8-8 of FIGURE 6.

FIGURE 9 is a fragmentary horizontal view taken substantially on the line 8-8 of FIGURE 6 but showing the door chime during door swinging action.

FIGURE 10 is a vertical transverse sectional view of a further form of door chime constructed in accordance with and embodying the present invention, illustrating the same as mounted upon a door adapted for swinging in one direction.

FIGURE 11 is a vertical transverse sectional view taken on the line 11-11 of FIGURE 10.

FIGURE 12 is a horizontal view taken on the line 1212 of FIGURE 10.

FIGURE 13 is a fragmentary elevational view, partially in section illustrating a magnet as engaged to a sleeve member of the door chime illustrated in FIGURE 1.

Description of the preferred embodiments Referring now by reference characters to the drawings which illustrate practical embodiments of the present invention. A generally designates a door chime comprising a chime or resonator box 1 having inner and outer side walls 2, 3, respectively, a bottom wall 4, and a pair of parallel, relatively thick end walls .5, 6; said box 1 being normally open to the top. Box 1 is adapted to be carried upon the upper portion of a conventional door D for movement therewith; the inner side wall 2 being in abutment against the confronting portion of the panel of door D and with the upper surface: of end walls 5, 6 being substantially flush with the upper edge of door D (FIGURE 1). Although there may obviously be various manners in which box 1 can be engaged to door D, a simple expedient comprises the use of angle brackets 7, 7', each having elongated horizontal flanges 8 for disposition upon the upper surface of the related end wall 5, 6 and the upper edge d of the door D and a relatively short vertical flange 9 for engaging the upper portion of the surface of the panel of door D opposite to that confronting inner side wall 2 of box 1. Accordingly, door D will thus be tightly clamped between flanges 9 and inner side wall 2. Said brackets 7, 7' are horizontally adjustable for accommodating doors D of varying thickness by means of a narrow, relatively long, slot-like opening 10 for relative positionment with respect to a holding screw 11 threadedly engaged within the top sunface of end walls 5, 6.

Door D is hung in a customary manner upon a jamb (not shown) of a door frame having a header 12 which may be devoid of a stop member whereby door D is swingable in both directions.

Extending transversely across the open top of box 1 and in the central portion thereof is a relatively short mounting plate 13 which is thus spaced at its end edges from the proximate end wall 5, 6. Pivotally mounted, as by a pin 14, upon the upper face of plate 13, substantially intermediate its ends is a sweep arm 15 having an overall length slightly less than the distance between end walls 6. In its opposite end portions, sweep arm may be relatively thickened as by block members 16, 16' and in such end portions on one side face thereof is provided with a cutout or recess 17, 17', each of which is defined by a pair of confronting shoulders 18, 19. Loosely carried on each end portion of sweep arm 15 is a sleeve 20 fabricated of metal and being magnetically inductible, having a length less than the distance between adjacent shoulders 18, 19. Each sleeve 20 is substantially of inverted channel shape having a web 21 disposed upon the upper surface of the proximate block 16 with its transverse extent being but slightly greater than the width of sweep arm 15 in the region of recesses 17, 17'; there being depending opposed side flanges 22 which are of considerably greater extent than the combined thickness of sweep arm 15 and blocks 16, 16'. Each side flange 22 is provided adjacent its lower margin with an inturned tab as at 23 for abutting the under surface of sweep arm 15 during any vertical movement of the related sleeve 20 so as to prevent displacement of the same from said arm 15. The extent of side flanges 22 between the under face of sweep arm 15 and the respective tab 23 will determine the extent of vertical movement of said sleeves 20. Said shoulders 18, 19 by abutment against the proximate side edges of the adjacent flange 22 prevent the associated sleeve 20 from being displaced longitudinally from sweep arm 15. Within the limits provided, sleeves 20, which are of relatively thin sheet material, are free for longitudinal as well as vertical movement. One end of sweep arm 15 projects beyond block 16 to define an extension 24 upon which is mounted a clapper 25 being generally of angle shape and having a horizontal flange 26 presented upon the upper surface of extension 24 and a vertical flange 27 depending downwardly to a point below the side face of extension 24 directed toward box inner wall 2. On its opposite side face, extension 24 is provided with a horizontal oblique surface 28 for purposes presently appearing. Horizontal flange 26 of clapper 25 is provided with an enlarged aperture 29 to provide a sloppy fit with the stem 30 of a holding screw 31 so as to allow rockability of said clapper 25 about said stem 30 for permitting resultant swinging of vertical flange 27 as illustrated in FIG- URE 3 and for purposes to be described below. Clapper 25 is presented so that its vertical flange 27 may successively contact the upper end portion of a plurality of hammers 32 of strikers 33 which are aligned transversely of box 1. It is apparent that the number of strikers 33 may be a matter of choice, but for purposes of illustration, box 1 is shown as containing three such strikers. Each striker 33- embodies a relatively short stud 34 fixed at its lower end in box bottom wall 4 and having engaged thereabout a helical spring 35 which projects above the upper end of the related stud 34 for encirclingly engaging the lower end of the associated hammer 32. The spacing between stud 34 and its related hammer 32 assures of resilient mounting for hammer 32. Each hammer 32 may carry a muflier 36' as of felt or like material for reducing or softening the sound produced by engagement of each hammer 32 with a related tine 37 fabricated preferably of metal rod stock and being fixed in its end proximate the associated striker 33 suitably within end wall 6 which may, if desired, be provided with a mounting plate 38. Each tine 37 extends longitudinally of box 1 and with its opposite or free end terminating spacedly 4 from end wall 5. Thus, each of said tines 37 is supported at but one end so as to be free to vibrate upon impact by the associated hammer 32; said tines 37 being of predetermined lengths so as to be productive of sounds of different pitch for enhancing the signalling characteristics of the present invention.

Referring now to FIGURE 1, there is mounted upon header 12 a pair of transversely spaced apart channel brackets 39, 40, which are suitably fixed to said header 12 for stable engagement therewith. Said bracket 39 incorporates at one end a short horizontal mounting flange 41 for supporting a depending magnet 42 in immediate proximity to the adjacent face of header 12 and with the lower end of said magnet 42 extending below the underface of header 12 but not obstructingly within the path of movement of door D. Magnet 42 is mounted for free swinging about its vertical axis by means of a screw 42'. Bracket 40 at one end incorporates a relatively elongated horizontally disposed mounting arm or flange 43 located on the side of header 12 opposite to that upon which flange 41 of bracket 39 is located and carrying at its outer end, in depending fashion, a magnet 44 which is planarwise aligned with magnet 42 but being offset laterally therefrom by reason of the relative disposition of brackets 39, 40 upon header 12 (see FIGURES 4 and 5). Magnet 44 is similarly adapted for free movement about its vertical axis by means of a mounting screw 44'. It will thus be seen that box 1 is mounted upon door D so that during the course of the latters swinging action in one direction (as to the left of FIGURE 1), sleeve 20 will move beneath magnet 44, and during the course of its swinging action in the opposite direction (as to the right hand side of FIGURE 1), sleeve 20 will move beneath magnet 42.

The operation of door chime A may be best understood by reference to FIGURES 4 and 5. In FIGURE 4, there is shown in phantom lines door D in normally closed relation while the full lines illustrate door D in the course of opening, swinging movement which corresponds to movement toward the left hand side of FIGURE 1. Thus, as door D swings in the aforesaid direction, sleeve 20 will be brought into the magnetic field of magnet 42 and be drawn upwardly into engagement therewith (see FIG URE 13). This attraction establishes a pivot axis through magnet 42 so that as door D continues its swinging movement, the opposite or now free end of sweep arm 15 will be swung in the general direction of travel of door D while the other end is engaged or held, such pivotal action being effected as a result of the movement of door D and pivot pin 14, so that, in effect, one portion of sweep arm 15 is engaged to header 12 while another portion is engaged to box 1 by means of pivot pin 14. It will thus be seen that as door D continues its swinging action and as the free end of sweep arm 15 which carries clapper 25 moves in a direction from outer wall 3 toward inner wall 2, clapper 25 will successively engage hammers 32. By reference to FIGURE 36, it will be seen that by the engagement between hammer 32 and clapper 25, the vertical flange 27 of the latter will be resisted at its lower end causing horizontal flange 26 to be rocked upwardly into abutment against stem 30 so as to prevent further yielding of vertical flange 27, whereby upon continued movement of the extension-bearing end of sweep arm 15, the engaged hammer 32 will give, stressing its associated spring 35. As contact is lost with clapper 25, the erstwhile engaged hammer 32 will come under the influence of its spring 35 and be swung into sound-producing contact with its respective tine 37. Thus, each hammer 32 will be so engaged and operated until extension 24 abuts against the inner face of inner side wall 2, terminating swing action of sweep arm 15. With the extensionend of sweep arm 15 so engaged, further swinging of door D beyond such juncture will force a breaking of the magnetic contact between magnet 42 and sleeve 21. Thus, the sound-emitting action occurs at an early point in the movement of door D. It will further be observed that clapper 25 will follow a path which causes it to move across a tine 37 before engaging the hammer 32 of the related striker 33.

As door D is returned from the aforesaid outward position, magnet 42 will reestablish contact with sleeve 21 and cause a reverse swinging of sweep arm which is determined by abutment of surface 28 of extension 24 against outer wall 3 so that sweep arm 15 is poised for its next operative swing. During such returning movement, clapper 25 will ride over the hammers 32 so that no sound is produced. By reference to the left hand portion of FIGURE 3, it will be seen that the contact between hammer 32 and clapper 25 during such travel will tend to lift vertical flange 2.7 while rocking horizontal flange 26 downwardly at its free edge.

With the movement of door D in the direction opposite that hereinabove described, that is, toward the right hand side of FIGURE 1 and as shown in FIGURE 5, magnet 44 will attract sleeve and by continued movement of door D in such direction, sweep arm 15 will be pivoted so as to effect sound-producing engagement between clapper and hammers 32 to signal the door action.

From the foregoing, it is thus apparent that door chime A is equally operable regardless of the direction of swing of door D, so that whether an opening or closing action is occurring, the appropriate signal will be made.

It is obvious that if desired, only a single magnet may be utilized on one side of the door frame so that door chime A will be operated in only one direction of movement.

The foregoing demonstrates a door chime which is operable solely by mechanical means, not requiring any wiring or the like and one wherein the door chime is easily and simply mounted upon a door for movement therewith.

Referring now to FIGURES 6 through 9, another form of door chime B constructed in accordance with the present invention is illustrated and comprises a chime or resonator box 1 having an inner wall 2', and outer wall 3', a bottom wall 4, and end walls 5', 6' with a mounting plate 13 presented for establishing spacings between its end edges and the proximate end wall 5, 6'; there being adjustable angle brackets 17, 17' for engaging the upper edge of door D for mounting door chime B thereon for movement therewith; said inner wall 2' abutting the confronting portion of the panel of door D; all of said elements being of like construction and character as the corresponding components of door chim A hereinabove described. Disposed within chime box 1 is a plurality of strikers 33 and associated tines 37' which are of like construction and in the same mutual relationship as the corresponding strikers 33 and tines 37, respectively, of door chime A above described. Mounted upon the upper face of plate 13 is a linkage system generally designated L which comprises a pair of swing arms 45, 46 which are each pivotally mounted as by pins 45', 46' on said plate 13 for swingable movement within a plane parallel to that of plate 13. Said arms 45, 46 are interengaged at their inner or adjacent ends for contemporaneous movement; such interengagement being effected by means of an elongated longitudinally extending slot 47, provided in arm 45 for receiving a guide pin 48 depending from the underside of an extension 49 carried upon arm 46 for overlying relationship with respect to the proximate end portion of arm 45. By this arrangement, with guide pin 48 traveling within slot 47, the said inner ends of arms 45, 46 will be caused to move together toward and away from inner wall 2 as the case may be. (See FIGURES 8 and 9.)

Pivotally mounted, as by a pin 50, 51 upon the upper face of each arm 45, 46, respectively, proximate the outer ends thereof, is a relatively short link 52, 53, respectively, each of which latter mounts on its upper face an extension are 54, 55, respectively, having an end rounded contact surface 56, 57, which may, if desired, have applied thereon a section of resilient material such as rubber, as indicated at r. Each extension arm 54, 55 is adapted for relative longitudinal adjustment with respect to its link 52, 53 by means of a slot 58, 59, respectively, which receives an adjustment screw 60,61, respectively, carried in the related links 52, 53. Engaged on each like 52, 53 adjacent to, and inwardly of, pins 50, 51, is an anchor screw 62, 63, respectively, for selected engagement by one end of a coil spring 64 of extension type, the other end of which is engageable upon either of anchor screws 65, 66, fixed in mounting plate 13, adjacent the edge thereof proximate inner wall 2' and being located on the respective sides of the path of travel of guide pin 48 in a direction transversely of mounting plate 13' during swinging of arms 45, 46. Thus, for reasons to be discussed hereinbelow, spring 64 will be engaged at its ends to either anchor screws 63 and 66 or anchor screws 62 and 65, depending upon which link 52, 53 is to be placed under bias. As shown in FIGURES 8 and 9, spring 64, for illustration purposes, is so mounted as to bias link 53 and hence its related arm 55 toward inner wall 2'.

The end portion of arm 46, outwardly of link 53, carries a clapper 25' which is in all respects similar to clapper 25 above described, for operative contact with strikers 33 for effecting sound-production as arm 46 is pulled toward inner wall 2' in a manner to be described below. The outer end extremities of each arms 45, 46 on their sides remote from inner wall 2 are provided with horizontal oblique surfaces 28 similar in all respects to surface 28 above described in conjunction with door chime A; said surfaces 28' being adapted for abutment against a vertically presented detent 67 projecting upwardly of outer wall 3' with which it may, if desired, be continuous. Thus, by engagement with oblique surfaces 28', said detent 67 serves to limit the swinging of arms 45, 46 in one direction of swing.

With reference to FIGURE 6, it will be seen that door D is mounted within its particular door frame, (not shown) which includes a header 12, for opening move ment in but a single direction; there being a stop member 68 =fixed to the underside of header 12.

Also as illustrated in FIGURES 6 and 7, swing arms 45, 46 are so mounted upon plate 13' as to present extension arms 54, 55 of links '52, 53 upwardly of the upper edge of door D for alignment with, or in confronting relationship to, the proximate side face of header 12', as indicated at H. Additionally, it is to be observed that the inner portion of chime box B will underlie said header side portion H.

In operation, with door D closed, the rounded ends 56, 57 of extension arms 54, 55, respectively, will abut against header portion H by reason of the bias of spring 64 which will urge the related extension arm inwardly toward header side face H against which such extension will abut thereby maintaining spring 64 under tension. Upon swinging of door D into open condition, that is, from the position shown in FIGURE 6' toward the right hand side of said FIGURE, door chime B will thus be moved away from header 12 so as to thereby free the spring-engaged extension arm 54 or 55, as the case may be, for movement under influence of spring 64, thereby causing the outer end of the associated swing arm 45 or 46 to travel inwardly toward wall 2' with clapper 25 sequentially engaging the aligned strikers 33 with resultant sound-production in the manner above described in conjunction with the operation of door chime A. The selection of which set of anchor screws to be engaged by spring 64 is dictated by the side upon which door D is hung in that link 52, 53 nearest the hinge is the one which will be so engaged. It will of course be seen that if link 52 is the one directly influenced by spring 64, then by reason of the interengagement of swing arms 45, 46, clapper 25 will be brought into successive operational engagement with strikers 33'.

-It should be further observed that if desired, door chime B may be mounted upon the free side of door D with extension arms 54, 55 being in detaining engagement with the adjacent jamb of the related door frame while door is closed and upon door opening being thereby freed for operational swinging through tension-release of spring 64.

Referring now to FIGURES 10, 11 and 12, another form of door chime indicated C and embodying the present invention is illustrated which comprises a chime box 71 having inner and outer side wall 72, 73, a bottom wall 74, and end walls 75, 76; there being a mounting plate 77 extending between the intermediate portions of side wall 72, 73 and being suitably secured thereto but with said plate 77 being located slightly downwardly of the upper edges of said side walls 72, 73 so that a top closure 78 may be provided. Disposed within said box 71 is a pair of tines 79, 79 having associated strikers 80, 80' mounted in immediate adjacency thereto; said tines 79, 79 and said strikers 80, 80' structurally corresponding to tines 37 and strikers 33 hereinabove described in conjunction with door chime A. As may best be seen in FIGURE 10, said strikers 80, 80' are presented on opposite sides of their related tines 79, 79', and as illustrated in FIGURE 11, are laterally offset for operative engagement with clappers 81, 81 which are of like construction as clapper 25 hereinabove described, and are carried upon opposite sides of one end portion of a sweep arm 82 which is pivotally mounted as at 83 upon mounting plate 77 for swingable movement between side wall 72, 73 and within a plane parallel to mounting plate 77. Fixed in sweep arm 82, proximate clapper 81' and inwardly thereof, is an anchor screw 84 for engaging one end of an extension spring 85, the other end of which is fixed to a pin 86 secured in mounting plate 79 proximate outer side wall 73 (see FIGURE 12). Thus, under influence of spring 85, sweep arm 82 will be biased so that the clapperbearing end of said sweep arm 82 will be urged toward outer side wall 73 (see FIGURE 12).

Said door chime C is adapted for mounted disposition upon a door E as by means of adjustable angle brackets 87, 87 which are similar in all respects to brackets 7, 7' hereinabove described.

Secured as by a pin 88 to the upper surface of sweep arm 82 at a point adjacent anchor pin 84, is one end of a pull cord 89 which may be of any suitable flexible material, such as wire and the like, and which extends outwardly of box 71 by passing through an opening 90 in closure 78 for extension over the top edge of door E and thence downwardy along the forward face of said door E for convenience of manipulation by an individual desiring to signal door opening operation. Pull cord 89 may at its lower end incorporate an enlarged handle portion 90' (see FIGURE for ease of grasping.

It will thus be seen that by pulling downwardly upon handle 90', the clapper-carrying end of sweep arm 82 will be swung toward inner wall 72 (which abuts the inside face of door E) and with such movement causing clapper 81 to operatively engage striker 80 to bring about the development of a sound. Upon release by the operator of handle 90', sweep arm 82 will then be freed for return swinging movement under force of spring 85 and which movement will cause clapper 81 to operatively engage striker 80' with like sound-production. Thus, by the novel arrangement of clappers 81, 81 and related strikers 80, 80, a signaling sound will be developed on both inner and outer swinging of sweep arm 82. In view of the fact that box 71 is provided with a top closure 78, bottom wall 74 may contain a plurality of openings as at 92 for desired sound escape.

It should be understood that changes and modifications in the formation, construction, arrangement and combination of the several parts of the door chime may be made and substituted for those herein shown and described without departing from the nature and principle of our invention.

Having thus described our invention what we claim and desire to obtain by Letters Patent is:

1. An aural signaling device for use with a swingable closure comprising means defining a housing, means for mounting said housing upon said closure for movement therewith, at least one vibratile member disposed within said housing, a striker resiliently mounted adjacent said vibratile member, an arm pivotally mounted on said housing, a clapper carried on one end of said arm for engaged with said striker during movement of said arm in one direction for causing said striker to effect soundproducing vibration of said vibratile member, and means for effecting swinging of said arm upon swinging of said closure in at least one direction of its movement.

2. An aural signaling device for use with a swingable closure as defined in claim 1 and further characterized by said housing having a bottom wall, upstanding end walls, and opposed side walls, there being a mounting plate extending between said side walls in their upper end portions, and said arm being pivotally mounted on said mounting plate.

3. An aural signaling device for use with a swingable closure as defined in claim 2 and further characterized by said mounting plate being spaced at each end from the proximate end wall of said housing, said striker being disposed between one end wall and the proximate edge of said mounting plate, said arm being mounted upon the upper face of said mounting plate and having its clapper-carrying and extending beyond the related edge of said mounting plate for engagement with said striker.

4. An aural signaling device for use with a swingable closure as defined in claim 3 and further characterized by said clapper being adapted for effecting swinging of said striker during one direction of movement of said arm and to ride over the said striker during movement of said arm in its opposite direction.

5. An aural signaling device for use with a swingable closure as defined in claim 4 and further characterized by said vibratile member being fixed at one end in an end wall for extension longitudinally of said housing and with its opposite end terminating spacedly from the opposite end wall, and the axis of said striker being substantially normal to the axis of said vibratile member.

6. An aural signaling device for use upon a swingable closure as defined in claim 1 and further characterized by said means for effecting swinging of said arm including resilient means biasing said arm member to swing in a direction as to cause the clapper to engage the striker for sound-production.

7. An aural signaling device for use with a swingable closure as defined in claim 1 and further characterized by magnetic means associated with said arm for effecting relative swingable movement thereof to cause soundproducing vibration of the vibratile member.

8. A signaling device for use with a door swingably mounted within the door frame having a header portion, said device comprising means defining a housing, means for mounting said housing upon said door adjacent the upper margin thereof for movement therewith, at least one vibratile member disposed within said housing, a striker resiliently mounted adjacent said vibratible member, an arm pivotally mounted on said housing, a magnetically inductible member carried on said arm, a clapper mounted on one end portion of said arm for engagement with said striker for causing said striker to effect sound-producing vibration of said vibratible member, a magnetic member mounted on said door frame and projecting therefrom, said magnetic member being positioned for engaging said magnetically inductible member during door swinging operation so as to retain said arm for relative pivotal movement of said housing therewith upon door swinging action so as to effect operation between said clapper and said striker.

9. A signaling device as defined in claim 8 and further characterized by a magnetic member mounted on each side of said door frame for projection in opposite directions therefrom within the path of swinging movement of said door, said magnetic members being mutuall'y laterally off-set, a magnetically inductible member being carried on opposite sides of the pivot mounting of said arm for engagement by the related magnetic member depending upon the path of swing of said door.

10. A signaling device for use with door swingably mounted within the door frame comprising means defining a housing, means for mounting said housing adjacent the upper margin of said door for movement therewith, at least one vibratile member disposed within said housing, a striker resiliently mounted adjacent said vibratile member, an arm pivotally mounted on said housing, means carried on one end portion of said arm for engagewith said striker for causing said striker to effect soundproducing vibration of said vibratile member, resilient means biasing said arm to swing said arm in a direction UNITED STATES PATENTS 2,705,936 4/1955 Garson 116--l69 X 2,735,397 2/1956 Bishop 116--169 X 2,750,920 6/1956 Tall 116169 X 2,792,805 5/1957 Roseman 116169 X LOUIS =R. PRINCE, Primary Examiner.

D. M. YASICH, Assistant Examiner.

US. Cl. XJR. 1 16100 3 3 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3.4511373 Dated June 24, 1969 Inventor) Paul Fox and Horace N. Broyles It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

[ 111 the Claims, Column 8, Claim 1, line 10, "engaged" should be engagement Claim 3, line 29, "and" should be end Column 9, claim 10, line 8, "door" should be doors SIGNED AND SEALED SEP 301969 (SEAH Attest:

Edwar M- Betcha-J" mm: 2. 608111183, .18. Anesting office. Commissioner of Patents 

